L4 - Upper Muscles (Arm and Hand) (Unfinished)

Question 1

Besides the triceps brachii and biceps brachii, what are the two other upper arm muscles?

Answer 1

Coracobrachialis

Brachialis

Question 2

What superficial muscle (flexes elbow) originates on the humerus and separates the forearm extensors from the flexors?

Answer 2

Brachioradialis

Note: image is of posterior hand and forearm